I bought this book on the strength of Charles Dowding's other two titles, both of which I regard as invaluable. Mr Dowding's great strength is that he writes from his own practical experience, and gives excellent advice, rather than simply re-hashing previous writings.
This title is probably the most valuable of the three, as it contains a great deal of very helpful advice on growing vegetables at a time when so many plots are bare, or only have a few tattered leeks and cabbages available.
If you are serious about wanting to grow you own vegetables, I would certainly recommend this book!